I assume he caucused with Republicans if he wins?
Yes, he'd he an improvement over Mike Lee marginally, but not someone for Democrats to care about.
I disagree. He may essentially be a Republican in all but name BUT he’d at least be a respectable one. He would never advocate for overthrowing American democracy. In the present timeline, that outweighs one’s politics.
All Democrats in the state should get behind him. He’s literally the only chance—however small it may be—of toppling a Trump Republican in the state.
I'd be fine with not running a candidate here and letting D voters go to McMullin, but I don't think it would make much difference. If he becomes the de facto Democratic candidate, it hurts him among Republicans.
What would be neat is if McMullin were a little more popular and Utah were a little more Democratic, then maybe McAdams could snipe a 3-way race in the high 30s, but that's not happening.